161051192 has 8 divisors (see below), whose sum is σ = 301971000. Its totient is φ = 80525592.

The previous prime is 161051173. The next prime is 161051197. The reversal of 161051192 is 291150161.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161051197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065692 + ... + 10065707.

It is an arithmetic number, because the mean of its divisors is an integer number (37746375).

Almost surely, 2^161051192 is an apocalyptic number.

It is an amenable number.

161051192 is a deficient number, since it is larger than the sum of its proper divisors (140919808).

161051192 is a wasteful number, since it uses less digits than its factorization.

161051192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20131405 (or 20131401 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 26.

The square root of 161051192 is about 12690.5946275184. The cubic root of 161051192 is about 544.0698349649.

The spelling of 161051192 in words is "one hundred sixty-one million, fifty-one thousand, one hundred ninety-two".